K6T8008C2M Family CMOS SRAM Document Title 1Mx8 bit Low Power and Low Voltage CMOS Static RAM Revision History Revision No. History Draft Date Remark 0.0 Initial draft June 22, 1999 Advance 1.0 Finalize - Adopt New Code system. - Improve VIN, VOUT max. on A ’ BSOLUTE MAXIMUM RATINGS’from 7.0V to VCC+0.5V. - Change Icc: from 12 to 10mA - Change Icc1: from 10 to 12mA February 29, 2000 Final The attached datasheets are provided by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the specifications and products. SAMSUNG Electronics will answer to yourquestions about device. If you have any questions, please contact the SAMSUNG branch offices. 1 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM 1Mx8 bit Low Power and Low Voltage CMOS Static RAM FEATURES GENERAL DESCRIPTION • Process Technology: TFT • Organization: 1M x8 • Power Supply Voltage: 4.5~5.5V • Low Data Retention Voltage: 2.0V(Min) • Three state output and TTL Compatible • Package Type: 44-TSOP2-400F/R The K6T8008C2M families are fabricated by SAMSUNG′s advanced CMOS process technology. The families support industrial operating temperature ranges for user flexibility of system design. The families also support low data retention voltage for battery back-up operation with low data retention current. PRODUCT FAMILY Power Dissipation Product Family Operating Temperature K6T8008C2M-B Commercial(0~70°C) K6T8008C2M-F Industrial(-40~85°C) Vcc Range Speed 4.5~5.5V 55 1)/70ns Standby (ISB1, Max) Operating (ICC2, Max) 50µA 70mA PKG Type 44-TSOP2-400F/R 80µA 1. The parameter is measured with 50pF test load. PIN DESCRIPTION FUNCTIONAL BLOCK DIAGRAM Clk gen. A4 A3 A2 A1 A0 CS1 NC NC I/O1 I/O2 Vcc Vss I/O3 I/O4 NC NC WE A19 A18 A17 A16 A15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44-TSOP2 Forward 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A5 A6 A7 OE CS2 A8 NC NC I/O8 I/O7 Vss Vcc I/O6 I/O5 NC NC A9 A10 A11 A12 A13 A14 A5 A6 A7 OE CS2 A8 NC NC I/O8 I/O7 Vss Vcc I/O6 I/O5 NC NC A9 A10 A11 A12 A13 A14 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 44-TSOP2 Reverse 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 A4 A3 A2 A1 A0 CS1 NC NC I/O1 I/O2 Vcc Vss I/O3 I/O4 NC NC WE A19 A18 A17 A16 A15 Precharge circuit. Vcc Vss Row Addresses I/O 1~I/O8 Row select Data cont Memory array 1024 rows 1024×8 columns I/O Circuit Column select Data cont Column Addresses Name CS1, CS 2 Function Name Function Chip Select Inputs Vcc Power OE Output Enable Input Vss Ground WE Write Enable Input I/O 1~I/O8 Data Inputs/Outputs A0~A19 Address Inputs NC No Connect CS1 CS2 OE Control Logic WE SAMSUNG ELECTRONICS CO., LTD. reserves the right to change products and specifications without notice. 2 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM PRODUCT LIST Commercial Temperature Products(0~70°C) Part Name Industrial Temperature Products(-40~85°C) Function Part Name Function K6T8008C2M-TB55 K6T8008C2M-TB70 44-TSOP2-F, 55ns, 5.0V, LL 44-TSOP2-F, 70ns, 5.0V, LL K6T8008C2M-TF55 K6T8008C2M-TF70 44-TSOP2-F, 55ns, 5.0V, LL 44-TSOP2-F, 70ns, 5.0V, LL K6T8008C2M-RB55 K6T8008C2M-RB70 44-TSOP2-R, 55ns, 5.0V, LL 44-TSOP2-R, 70ns, 5.0V, LL K6T8008C2M-RF55 K6T8008C2M-RF70 44-TSOP2-R, 55ns, 5.0V, LL 44-TSOP2-R, 70ns, 5.0V, LL FUNCTIONAL DESCRIPTION CS1 CS2 OE WE I/O1~8 Mode Power H X X X High-Z Deselected Standby X L X X High-Z Deselected Standby L H H H High-Z Output Disabled Active L H L H Dout Read Active L H X L Din Write Active Note: X means don′t care. (Must be low or high state) ABSOLUTE MAXIMUM RATINGS1) Item Voltage on any pin relative to Vss Voltage on Vcc supply relative to Vss Power Dissipation Storage temperature Operating Temperature Symbol Ratings Unit Remark VIN, VOUT -0.5 to VCC+0.5V V - VCC -0.3 to 7.0 V - PD 1.0 W - TSTG -65 to 150 °C - 0 to 70 °C K6T8008C2M-B -40 to 85 °C K6T8008C2M-F TA 1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. Functional operation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 3 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM RECOMMENDED DC OPERATING CONDITIONS1) Symbol Product Min Typ Max Unit Supply voltage Item Vcc K6T8008C2M Family 4.5 5.0 5.5 V Ground Vss All Family 0 0 0 Input high voltage VIH K6T8008C2M Family 2.2 - Input low voltage VIL K6T8008C2M Family -0.5 3) V Vcc+0.5 - V 2) 0.8 V Note: 1. Commercial Product: T A=0 to 70°C, otherwise specified. Industrial Product: TA=-40 to 85°C, otherwise specified. 2. Overshoot: VCC+3.0V in case of pulse width ≤30ns. 3. Undershoot: -3.0V in case of pulse width ≤30ns. 4. Overshoot and undershoot are sampled, not 100% tested. CAPACITANCE 1) (f=1MHz, TA=25°C) Item Symbol Test Condition Min Max Unit Input capacitance CIN VIN=0V - 8 pF Input/Output capacitance CIO VIO=0V - 10 pF 1. Capacitance is sampled, not 100% tested. DC AND OPERATING CHARACTERISTICS Item Symbol Test Conditions Min Typ Max Unit Input leakage current ILI VIN=Vss to Vcc -1 - 1 µA Output leakage current ILO CS1=VIH, CS2=VIL or OE=VIH or WE=VIL, VIO=Vss to Vcc -1 - 1 µA Operating power supply current ICC IIO=0mA, CS1=VIL, CS2=VIH, WE=VIH, VIN=VIH or VIL - - 10 mA ICC1 Cycle time=1µs, 100%duty, IIO=0mA, CS1≤0.2V, CS2≥Vcc-0.2V, VIN≤0.2V or VIN≥VCC-0.2V - - 12 mA ICC2 Cycle time=Min, IIO=0mA, 100% duty, CS1=VIL, CS2=VIH, VIN=VIL or V IH - - 70 mA Average operating current Output low voltage VOL IOL = 2.1mA - - 0.4 V Output high voltage VOH IOH = -1.0mA 2.4 - - V Standby Current(TTL) ISB CS1=VIH, CS2=VIL, Other inputs=VIH or VIL Standby Current(CMOS) ISB1 CS≥Vcc-0.2V, Other inputs=0~Vcc 4 - - 3 mA K6T8008C2M-B - - 50 µA K6T8008C2M-F - - 80 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM AC OPERATING CONDITIONS TEST CONDITIONS(Test Load and Input/Output Reference) Input pulse level: 0.4 to 2.2V Input rising and falling time: 5ns Input and output reference voltage: 1.5V Output load(see right): CL=100pF+1TTL CL=50pF+1TTL CL1) 1.Including scope and jig capacitance AC CHARACTERISTICS (VCC=4.5~5.5V, Commercial product: TA=0 to 70°C, Industrial product: TA=-40 to 85°C) Speed Bins Parameter List Symbol 55ns Min Read Max Min Max Read Cycle Time tRC 55 - 70 - ns Address Access Time tAA - 55 - 70 ns Chip Select to Output tCO - 55 - 70 ns Output Enable to Valid Output tOE - 25 - 35 ns Chip Select to Low-Z Output Output Enable to Low-Z Output Chip Disable to High-Z Output tLZ 10 - 10 - ns tOLZ 5 - 5 - ns tHZ 0 20 0 25 ns tOHZ 0 20 0 25 ns Output Hold from Address Change tOH 10 - 10 - ns Write Cycle Time tWC 55 - 70 - ns Chip Select to End of Write tCW 45 - 60 - ns Output Disable to High-Z Output Write Units 70ns Address Set-up Time tAS 0 - 0 - ns Address Valid to End of Write tAW 45 - 60 - ns Write Pulse Width tWP 40 - 50 - ns Write Recovery Time tWR 0 - 0 - ns Write to Output High-Z tWHZ 0 20 0 20 ns Data to Write Time Overlap tDW 25 - 30 - ns Data Hold from Write Time tDH 0 - 0 - ns End Write to Output Low-Z tOW 5 - 5 - ns Max Unit DATA RETENTION CHARACTERISTICS Item Symbol Vcc for data retention VDR Data retention current IDR Data retention set-up time tSDR Recovery time tRDR Test Condition CS1≥Vcc-0.2V1) Vcc=3.0V, CS1≥Vcc-0.2V1) See data retention waveform Min Typ 2.0 - 5.5 V - - 202) µA 0 - - 5 - - ms 1. CS1 ≥Vcc-0.2V,CS2 ≥Vcc-0.2V(CS1 controlled) or CS 2≥Vcc-0.2V(CS2 controlled). 2. Industrial product=30µA 5 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM TIMING DIAGRAMS TIMING WAVEFORM OF READ CYCLE(1) (Address Controlled, CS1=OE=VIL, CS2=WE=VIH) tRC Address tAA tOH Data Out Data Valid Previous Data Valid TIMING WAVEFORM OF READ CYCLE(2) (WE=VIH) tRC Address tOH tAA tCO1 CS1 tHZ(1,2) CS2 tCO2 tOE OE Data out High-Z tOHZ tOLZ tLZ Data Valid NOTES (READ CYCLE) 1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output voltage levels. 2. At any given temperature and voltage condition, tHZ(Max.) is less than tLZ (Min.) both for a given device and from device to device interconnection. 6 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM TIMING WAVEFORM OF WRITE CYCLE(1) (WE Controlled) tWC Address tWR(4) tCW(2) CS 1 tAW CS 2 tCW(2) tWP(1) WE tAS(3) tDW tDH Data Valid Data in tWHZ Data out tOW Data Undefined TIMING WAVEFORM OF WRITE CYCLE(2) (CS1 Controlled) tWC Address tAS(3) tCW(2) tWR(4) CS 1 tAW CS 2 tWP(1) WE tDW Data in Data out tDH Data Valid High-Z High-Z 7 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM TIMING WAVEFORM OF WRITE CYCLE(3) (CS2 Controlled) tWC Address tAS(3) tCW(2) tWR(4) CS1 tAW CS2 tCW(2) tWP(1) WE tDW Data in Data out tDH Data Valid High-Z High-Z NOTES (WRITE CYCLE) 1. A write occurs during the overlap of a low CS1 , a high CS2 and a low WE. A write begins at the latest transition among CS1 goes low, CS2 going high and WE going low : A write end at the earliest transition among CS1 going high, CS 2 going low and WE going high, tWP is measured from the begining of write to the end of write. 2. tCW is measured from the CS1 going low or CS2 going high to the end of write. 3. tAS is measured from the address valid to the beginning of write. 4. tWR is measured from the end of write to the address change. tWR applied in case a write ends as CS1 or WE going high tWR2 applied in case a write ends as CS2 going to low. DATA RETENTION WAVE FORM CS1 controlled VCC tSDR Data Retention Mode tRDR 4.5V 2.4V VDR CS1≥VCC - 0.2V CS1 GND CS2 controlled Data Retention Mode VCC 4.5V CS 2 tSDR tRDR VDR 0.4V CS2≤0.2V GND 8 Revision 1.00 February 2000 K6T8008C2M Family CMOS SRAM PACKAGE DIMENSIONS Unit: millimeters(inches) 44 PIN THIN SMALL OUTLINE PACKAGE TYPE II (400F) 0~8° 0.25 ( ) 0.010 #44 #23 10.16 0.400 0.45 ~0.75 0.018 ~ 0.030 11.76±0.20 0.463±0.008 ( 0.50 ) 0.020 #1 #22 1.00±0.10 0.039±0.004 1.20 MAX. 0.047 ( 0.805 ) 0.032 0.35± 0.10 0.014±0.004 0.80 0.0315 0.0 0.10 MAX 0.004 0.05 MIN. 0.002 18.81 MAX. 0.741 18.41±0.10 0.725±0.004 0 + 0.1 5 - 0.0 04 .0 +0 06 - 0.002 0.15 0~8° 44 PIN THIN SMALL OUTLINE PACKAGE TYPE II (400R) ( #1 0.25 ) 0.010 #22 10.16 0.400 0.45 ~0.75 0.018 ~ 0.030 11.76±0.20 0.463±0.008 ( 0.50 ) 0.020 #44 #23 1.00±0.10 0.039±0.004 1.20 MAX. 0.047 ( 0.805 ) 0.032 0.35±0.10 0.014±0.004 0.80 0.0315 0.05 MIN. 0.002 18.81 MAX. 0.741 18.41± 0.10 0.725±0.004 9 0 + 0.1 5 - 0.0 04 .0 +0 02 .006 - 0.0 0.15 0 0.10 0.004 MAX Revision 1.00 February 2000